package io.other;
import java.io.*;
public class InputExample{
	public static void main(String args[]){
		try{
			InputStreamReader ir;
			BufferedReader in;
			ir=new  InputStreamReader((System.in));
			in=new BufferedReader(ir);
			String s=in.readLine();
			System.out.println("input value is"+s);
			int  i=Integer.parseInt(s);
			i*=3;
			System.out.println("Input value changed after doubled:"+i);
		}catch(Exception e){
			System.out.println("Error:"+e.toString());
		}
	}
}